Question: Who discovered malaria on Nov. 6, 1880?
Paraphrase: I want to know the name of the person who discovered malaria in 1880!
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q12156 p:P61 ?s . ?s ps:P61 ?obj . ?s pq:P575 ?x filter(contains(YEAR(?x),'1880')) }